A random fact I found while web searching that blew my mind:
The power rangers series is still going on and this season features the return Bulk. Skull, however was preplaced by his son, Spike. Spike is Bulk's nephiew (or at least just calls Bulk his uncle).
Bulk owned a bar (a retconn due to the omission of a scene from that episode which revealed the existance of a bar named "Bulkmeister's." In that omitted scene it was explained the original green ranger was the owner of the bar, which only makes sense if he took over the bar sometime after it was established).
Some how during Bulk's many misadventures, he learned the basics of bushido. This fact is known since he is currently teaching Spike the art of samurai (incompetantly). As strnage as it sounds, this actually makes sense since he was a security guard, a police officer, and a detective who strangely enough spend several weeks to a year working in France.
Here's something worth mentioning: Spike is 17-18 meaning that he was born during Mighty Morphing Power Rangers season 1.
From what is known about Bulk, its really sad that he is considered a comedy relief character and isn't an mentor of a power ranger group since he does seem somewhat bad ass on paper.